Red Hat Bugzilla – Bug 356921
Thinkfinger's PAM module emits annoying RETURN key when using password
Last modified: 2013-03-05 22:53:33 EST
I'm a happy thinkfinger user however when I choose to authenticate using my
password; an annoying RETURN keypress is synthesized by thinkfinger. It's easy
to verify this; just log on to VT1 and you will see a newline just after having
entered your password.
This is a huge problem when you use PAM from a desktop application; the RETURN
keypress is intercepted by the toolkit and if a widget is focused (typically the
same button that caused the auth dialog to come up in the first place), it is
It's easy to very that thinkfinger is doing something fishy here
$ strings /lib/security/pam_thinkfinger.so |grep uinput
Initializing uinput failed: %s.
Could not send carriage return via uinput: %s.
(adding tmraz as Cc as he owns PAM)
I can't do much about this myself, thus CCing upstream.
Quoting Timo's response from the ML:
“The uinput hack should not trigger when a password is used. Having that said,
I have not seen the CR to be emitted when using a password. It's probably a
Fedora specific issue.”
Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
It is not Fedora specific. It has been found in Ubuntu as well.
Initially we had to work around a bug in HAL, and once Jon Oberheide worked around that problem we saw this other one with multiple <cr>. I found that r116 in Thinkfinger had introduced this extra <cr> defect, and could be reverted given the other fix.
I run with a locally fixed version of pam_thinkfinger.so containing both Jon's patch and reverting r116, and all works fine.
This problem is present in Fedora 10.
*** Bug 435992 has been marked as a duplicate of this bug. ***
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